I find it interesting that they thought they could really kill a mystical dragon with some damn rocks. If you saw him regain his vision when he should've been completely blind, been feeding him toxic poison for years that'll kill anyone within a few days, Seen him go to countless vicious wars and return victorious no scratches, try to trick him with fake Regas which he has no problem ending their lives with one glance whyyyyyyyy would you think some rocks would be the end all